Detective Ferrucci from the Watertown Police Department came to talk to the Forensic Science classes. His presentation included various means of lifting fingerprints, how blood can be obtained from “cleaned” crime scenes, and how to make impressions of tool marks that have been left at crime scenes. Detective Ferrucci also discussed the manner in which crimes are investigated. He stressed the importance of photography and not overlooking any trace evidence. He shared some actual photography from crime scenes and also discussed how those crimes were solved. The students were able to ask questions and get advice from Detective Ferrucci. Both classes appreciated his time and information.
On Tuesday Oct. 13th we will run a “Friday” schedule in order to ensure we are seeing all students equitably. With the long weekend on Oct. 9-12 and the PSAT on Oct. 14th we would have not seen periods 2,4,5,&8 for seven school days while seeing periods 1,3,5,&7 in three school days. With this change we see the even classes within four school days and the odd classes within five school days.
Friday Oct. 9th – Professional Development Day (Students have no school)
Monday Oct. 12th – Columbus Day Holiday
Tuesday Oct. 13th – “Friday” Schedule (HR, 4, Flex, 2, 8, 6)
Wednesday Oct. 14th – PSAT (HR, PSAT, Study Hall/Lunch, SSP) *12th graders will have a college/career visit day w/ proper permission.
Thursday Oct. 15th – “Thursday” Schedule (HR, 3, Flex, 1, 7, 5)
Friday Oct. 16th – “Friday” Schedule (HR, 4, Flex, 2, 8, 6)
Students in AP Biology investigated the effect of cell size on the rate of diffusion. Using agar cube cell models, students tested how far vinegar was able to diffuse into the core of 3 different sized cells. Cells need to absorb food and oxygen and remove wastes efficiently through their cell membrane. As a cell gets bigger, its surface area of it membrane to volume of it’s inside does not increase proportionately. Our results of the lab are shown below. All agar cubes started out dark pink. Diffusion of vinegar into the cube turns it clear. So is bigger always better?
As seen with our results, the vinegar diffused fully in the smallest cube (cell), partially in the medium cube and very little in the large cube. Students took measurements, calculated diffusion rate and % diffusion and graphed data to draw conclusions.
Students in the Forensic Science classes investigated a mock crime scene. The students needed to document the room and the evidence within the room, look for trace evidence that may help in the investigation, and complete a report that would be used in a court of law. Each team had to provide a final report at the end and decide what further investigations would need to be done to solve the murder.
On October 14th, all 9th, 10th, and 11th graders will be taking the Practice SAT Exam. Seniors are not scheduled to take the exam and will be allowed to visit a college/career of their choice on this school day if they provide signed documentation from a college/career visit. Seniors will be given more information in Homeroom next week along with the necessary documentation needed to get signed.
On October 14th, all 9th, 10th, and 11th graders will be taking the Practice SAT Exam. This test is designed to aid students in preparing for the SAT college admissions exam, which will be taken in junior and senior year. There is a separate PSAT test for 9th, 10th and 11th grade students. Students will report to school at normal time and will be normally. If you have any questions, please contact your child’s school counselor.
Senior Parent Night will be held on October 6th at 6:00 PM in the WHS Auditorium. Counselors will be discussing important topics related to the post secondary planning process; including the college application process, the college visit and interview, standardized testing, letters of recommendation, the college essay, and financial aid and scholarships. Don’t miss out on the opportunity to hear about all of these important topics and more!